Help with Torque converter lockup controller /Weber type

[Tom Leake]

I am trying to work through a little problem with my van.  I am hoping
 some on the DIY-EFI list might help.  I have a 83 Dodge Van I which I 
 have installed an A518 Transmission (the big dodge OD automatic). 
 When I installed the unit I discussed the lockup with a Mechanic who
 indicated that it would not hurt the trans to leave the TQ "unlocked up".
I have since found from a transmission specialist that this is not true of
 this transmission. 

I can use a manual lockup switch, but since my wife drives the vehicle
 also and does not want to bother with details I need a more automated
 method.  Is anyone aware of a dedicated lockup controller (not part of a
 complete Engine management system).  

It appears from the the Jeff Hartman bookd that I could use a DFI
 controller and convert the vehicle to a complete system, At the moment I
 am not prepared to invest in the complete EFI system (unless I could get
 a DFI controller very inexpensively).

The other question is about EFI throttle bodies that match WEBER 45MM
 DCOE pattern.  Are there any production vehicles that use a compatible
throttle body, or is there a supplier that sells a such a beast.  I have seen
 some pictured in Hartman's book, but the supplier was'nt clear to me.

Any suggestions would be much appreciated.
Thanks, Tom Leake